Ecumenical Patriarch Markos

Ecumenical Patriarch Markos (145-211) was the Ecumenical Patriarch of Constantinople from 198 to 211, succeeding Ecumenical Patriarch Olympianos and preceding Ecumenical Patriarch Philadelphos.

Biography
Markos took office as the Bishop of the See of Byzantium in 198 AD, and during his reign, Emperor Septimius Severus persecuted Christians in the Roman Empire.